# Allium Extracts on the Incidence of Respiratory Infection Symptoms in Healthy Elderly Volunteers

> **NCT04647071** · NA · COMPLETED · sponsor: **DOMCA S.A.** · enrollment: 66 (actual)

## Conditions studied

- Immunity

## Interventions

- **DIETARY_SUPPLEMENT:** Garlic and onion concentrate
- **DIETARY_SUPPLEMENT:** Control

## Key facts

- **NCT ID:** NCT04647071
- **Lead sponsor:** DOMCA S.A.
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-11-16
- **Primary completion:** 2021-07-26
- **Final completion:** 2022-01-31
- **Target enrollment:** 66 (ACTUAL)
- **Last updated:** 2022-05-23


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04647071

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04647071, "Allium Extracts on the Incidence of Respiratory Infection Symptoms in Healthy Elderly Volunteers". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04647071. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*